Replying to Have I left it too late?

Hi all. I'm 24, and I've been skiing for about 5 years, with some beginner lessons about 10 years ago, and I'm now at a point where I'm happy with my ability and I'm looking for new challenges. I live in the UK, so pretty much only do one week a year, maybe 2 if I'm lucky, with some time spent in the indoor places.

I've dabbled a bit in park skiing over the last couple of years. I'm confident skiing switch pretty much anywhere except in deepish powder. Last week I spent 2 nights at the nearest indoor ski centre and got confident hitting boxes and gas pipes. I got as far as trying a 270 off but never nailed it. I attempted my first rail but kept either falling or just slipping off. Oh, and I finally got the hang of 'popping' off the lip of a jump (even if it was a tiny one - I rode the BRITS course in Tignes earlier in the year and nearly shit myself when I hit the big jumps - nothing more than a straight air). I did try a rail in Tignes too, and dislocated my thumb when I fell. First skiing injury, but the best, most progressive skiing trip ever.

I know what I need to do, I understand the body movements, but I seem to have got to the point where I know I could hurt myself when I'm trying something new, and it's holding me back - so I'm struggling to commit. That's not something you worry about when you're a kid. So, do I just need to nut up and try harder, or have I left it too late? Help!